[ Sustainability ]
[ Sustainability ]
wind power and charcoal biomass from the company ’ s forests in Brazil . Last year India ’ s Jindal Stainless announced it would instal two rooftop solar plants and use wind and solar energy to power its mill in Jajpur . It has just launched a greenhydrogen electrolyzer , fuelled by solar panels , at its facility in Hisar , Haryana , India , which incorporates energy storage .
Biocoke Biocoke can replace fossil coke as a reductant . Outokumpu is currently studying the implementation of a facility that converts biomass in a pyrolysis process into biocarbon which , in a second process , can be processed and pelletized into biocoke .
Hydrogen reduction In Europe , carbon-steel manufacture is being transformed by a revolutionary technology , H-DRI ( hydrogen used to make direct-reduced iron ), which cuts CO 2 emissions by about 95 %. Iron ore is reacted with hydrogen to produce DRI , which is then blended with scrap steel in an electric arc furnace ( EAF ) to create liquid steel . The main waste product in this process is no longer CO 2 but water .
Solar panels provide electricity to power JSL ’ s stainless-steel mills and to make green hydrogen for energy storage .
Several steel makers in Europe and Asia are constructing mills that will deploy H-DRI , including SSAB , H2 Green Steel , Salzgitter , Metso , POSCO , Nippon and LKAB . However , the extent of future market penetration is uncertain : DRI manufacture is expensive and heavily dependent on subsidies . In fact , many of these producers continue to use natural gas as well as the more expensive hydrogen . Can hydrogen be applied in a similar process to make stainless steel ? Using
H as a reductant can cut emissions , but because of various practical problems this method has been discussed over several decades without yet being applied . Stefan Erdmann of Outokumpu doubts if it is feasible ; instead , the company is working on a new process to achieve chromite reduction . Some success has been achieved in the laboratory and the technology – still a closely guarded secret – awaits scaling up .
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